how to transfer multiple file to multiple server using public and private key
 

Hi,

I have 10 100 MB files in a single server.

I want to copy those files into 20 different servers at a single go. Do we have any commands to do the same. Or do we have to follow a particular process to do the same like defining a public and private key. If so how do we do that.

Any suggestions would be highly appreciated.

Regards,
Sampad Ray

copying files and public keys have nothing in common. If you have ssh working with keys, then you can use scp / sftp to copy fiels between those systems, sure, but it's nonsense to say you're copying them with a key.

Actually i had a interview question asking what would you do if you want to copy multiple files residing in a server to multiple servers at once rather than by doing it one at a time.

i found this code in the forum:

#/usr/bin/sh
# This is a script to copy files from one host to a group of hosts

# There are three variables accepted via commandline
# $1 = first parameter (/source_path/source_filename)
# $2 = second parameter (/target_directory/)
# $3 = third paramter (file that contains list of hosts)

SOURCEFILE=$1
TARGETDIR=$2
HOSTFILE=$3

if [ -f $SOURCEFILE ]
then
printf "File found, preparing to transfer\n"
while read server
do
scp -p $SOURCEFILE ${server}:$TARGETDIR
done < $HOSTFILE
else
printf "File \"$SOURCEFILE\" not found\n"
exit 0
fi
exit 0


but want to have a command to do it.

Well ... you got it, you just posted it.
Put all that on one line.


If you don't want a "host file" you could change it to a
for loop.

Of course your interviewers might have been after a response like:
"I'd use cfengine", or "Puppet, of course", or,
"Depending on the existing snmp infrastructure I'd utilise ... "

So many options ...


Cheers,
Tink

Ahh, I misread your question a fair bit. My bad.

Yeah, puppet all the way! or Func. they would be MY weapons of choice.